Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trang » canh tranh, hanh trinh, minh trang
trung cong » truong cong, trong cong, trung uong
cua trung » cua truong, xuan trung, cua nhung
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - ((hanh trang) or (thanh trung)) cua trung cong tac ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - ((hanh trang) OR (thanh trung)) cua trung cong tac ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - ((hanh trang) or (thanh trung)) cua trung cong tac ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - ((hanh trang) or (thanh trung)) cua trung cong tac ((toan cau) OR (toan cao))*.